PHP FTP - 在特定目录而不是根目录中下载文件

Question

I have a php script at /Users/John/Site/Code/pdfsync.php

In the script I have, I am connecting to an FTP, and downloading the files recursively, however it is creating folders and download files at /Users/John/Site/, but I can't seem to figure out how to have the files downloaded at a specific location. Let's say I when I run the script, I want it to create a PDF folder, so all the files are downloaded at /Users/John/Site/Code/PDF/, not sure how to achieve this.

$ftp_server = 'test.fr';
$ftp_user_name = 'test';
$ftp_user_pass = 'test';
$server = 'test.fr';

// set up basic connection
$conn_id = ftp_connect($ftp_server);

// login with username and password
$login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass);

if ((!$conn_id) || (!$login_result))
    die("FTP Connection Failed");

ftp_sync (".");

echo "Done";
ftp_close($conn_id);


function ftp_sync ($dir) {
    global $conn_id;

    if ($dir != ".") {
        if (ftp_chdir($conn_id, $dir) == false) {
            echo ("Change Dir Failed: $dir<BR>\r\n");
            return;
        }
        if (!(is_dir($dir)))
            mkdir($dir);
        chdir ($dir);
    }

    $contents = ftp_nlist($conn_id, ".");
    foreach ($contents as $file) {

        if ($file == '.' || $file == '..')
            continue;

        if (@ftp_chdir($conn_id, $file)) {
            ftp_chdir ($conn_id, "..");
            ftp_sync ($file);
        }
        else
            ftp_get($conn_id, $file, $file, FTP_BINARY);
    }

    ftp_chdir ($conn_id, "..");
    chdir ("..");
}

Answer 1

You can do this very easily by using this library :

The code:

$connection = new FtpConnection('host', 'username', 'password');

$client = new FtpClient($connection);

if (asyncDownload('Users/John/Site/Code/PDF', '.')) {
    echo 'Done!';
}

function syncDownload($localDir, $remoteDir)
{
    global $client;
    
    if (!is_dir($localDir)) {
        mkdir($localDir);
    }
    
    /**
     * listDirectoryDetails method will recursively gets all the files with
     * their details within the giving directory.
     */
    $files = $client->listDirectoryDetails($dir, true);
    
    foreach($files as $file) {
        $client->download($file['path'], $localDir . '/' . $file['name'], true, FtpWrapper::BINARY);
    }
    
    return true;
}

Answer 2

The way your code works, the easiest solution is to change the current local working directory to the target path, before calling ftp_sync :

chdir("/Users/John/Site/Code/PDF/");
ftp_sync (".");